199003 (2005 WJ56)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1520194228 ± 9.55e-09
Semi-major axis (a)0.9590116507 AU ± 1.43e-10
Inclination (i)21.61637987° ± 2.38e-06
Long. of Asc. Node (Ω)288.01474602° ± 4.47e-07
Arg. of Perihelion (ω)297.65358928° ± 1.15e-06
Mean Anomaly (M)266.88352734° ± 2.13e-06
Mean Motion (n)1.0494855208°/day ± 2.36e-10
Perihelion dist (q)0.81322325 AU ± 9.16e-09
Aphelion dist (Q)1.10480005 AU ± 9.16e-09
Orbital Period0.93915186 yr ± 2.11e-10
Physical Parameters
H (abs. magnitude)18.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.321″
Uncertainty0
Orbit TypeAten
MOID0.022468 AU
Observations Used1234
Radar Obs Used5
Oppositions1
Arc Total2005-2024
First Observation Used2005-11-29
Last Observation Used2024-11-29
Observations (1308)
Date Type RA Dec Mag Band Observatory
2007-09-13 22:04:26 C 06 19 52.94 +71 35 35.7 c A78
2007-09-13 22:10:41 C 06 19 54.50 +71 35 38.8 c A78
2007-09-13 22:14:11 C 06 19 55.32 +71 35 40.8 c A78
2007-12-05 04:44:24 C 11 43 14.97 +68 35 14.1 c A24
2007-12-05 04:45:53 C 11 43 14.97 +68 35 14.1 c A24
2007-12-16 01:40:41 C 11 38 23.09 +69 02 10.3 o J51
2007-12-16 02:01:18 C 11 38 21.27 +69 02 18.5 o J51
2007-12-16 02:16:47 C 11 38 19.95 +69 02 24.5 o J51
2007-12-16 09:18:57 C 11 37 45.64 +69 03 54.3 o 673
2007-12-16 09:27:19 C 11 37 44.87 +69 03 57.3 o 673
2007-12-16 09:54:06 C 11 37 42.20 +69 04 07.3 o 673
2007-12-17 00:32:45 C 11 36 24.61 +69 07 05.2 c 127
2007-12-17 00:37:46 C 11 36 24.13 +69 07 07.0 c 127
2007-12-17 00:42:46 C 11 36 23.63 +69 07 08.7 c 127
2007-12-17 00:48:10 C 11 36 23.10 +69 07 10.5 c 127
2007-12-17 00:53:09 C 11 36 22.59 +69 07 12.3 c 127
2007-12-17 01:37:15 C 11 36 17.97 +69 07 33.6 c 595
2007-12-17 01:44:29 C 11 36 17.15 +69 07 36.0 c 595
2007-12-17 22:00:15 C 11 34 15.86 +69 11 46.5 c 127
2007-12-17 22:11:17 C 11 34 14.78 +69 11 50.9 c 127
2007-12-17 22:17:28 C 11 34 14.15 +69 11 53.2 c 127
2007-12-17 22:33:53 C 11 34 12.52 +69 11 58.8 c 127
2007-12-19 09:42:26 C 11 29 51.60 +69 21 45.9 r H45
2007-12-19 09:44:19 C 11 29 51.30 +69 21 46.9 r H45
2007-12-19 09:47:13 C 11 29 50.80 +69 21 47.9 r H45
2007-12-19 09:50:41 C 11 29 50.19 +69 21 49.1 r H45
2007-12-19 09:52:19 C 11 29 49.91 +69 21 49.7 r H45
2007-12-19 09:53:47 C 11 29 49.62 +69 21 50.4 r H45
2007-12-20 10:05:44 C 11 26 12.79 +69 28 28.5 16.3 c 704
2007-12-20 10:24:20 C 11 26 09.12 +69 28 36.5 16.6 c 704
2007-12-20 10:43:05 C 11 26 05.48 +69 28 43.5 16.5 c 704
2007-12-20 11:01:57 C 11 26 01.57 +69 28 50.5 16.4 c 704
2007-12-20 11:20:30 C 11 25 57.90 +69 28 57.2 16.6 c 704
2007-12-20 16:56:24 C 11 25 00.66 +69 29 14.8 o 084
2007-12-20 16:59:38 C 11 25 00.24 +69 29 15.9 o 084
2007-12-20 17:02:51 C 11 24 59.76 +69 29 16.9 o 084
2007-12-20 17:06:04 C 11 24 59.26 +69 29 18.1 o 084
2007-12-21 21:19:22 C 11 19 47.82 +69 37 48.9 o A35
2007-12-21 21:21:42 C 11 19 47.37 +69 37 50.2 o A35
2007-12-21 21:25:09 C 11 19 46.69 +69 37 51.6 o A35
2007-12-21 21:28:35 C 11 19 46.02 +69 37 53.2 o A35
2007-12-21 21:32:00 C 11 19 45.36 +69 37 54.8 o A35
2007-12-24 09:39:05 C 11 04 41.57 +69 56 48.1 r H45
2007-12-24 09:43:35 C 11 04 39.98 +69 56 49.5 r H45
2007-12-24 09:45:54 C 11 04 39.18 +69 56 50.0 r H45
2007-12-24 09:48:19 C 11 04 38.33 +69 56 51.0 r H45
2007-12-24 09:51:50 C 11 04 37.17 +69 56 52.3 r H45
2007-12-24 09:53:38 C 11 04 36.46 +69 56 53.0 r H45
2007-12-26 19:13:14 C 10 43 39.00 +70 10 46.1 m 379
2007-12-26 19:18:08 C 10 43 36.56 +70 10 47.2 m 379
Radar Observations (10)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2008-01-09 02:12:00 29272278.9 4 us 2380 -1 -1
2008-01-09.091667 2927227890 4000 us 2380 251 251
2008-01-10 01:04:00 19847.14 0.05 Hz 2380 -1 -1
2008-01-10 01:08:00 27936813.1 1 us 2380 -1 -1
2008-01-10.044444 1984714 5 Hz 2380 251 251
2008-01-10.047222 2793681310 1000 us 2380 251 251
2008-01-11 00:52:00 -25527.29 0.05 Hz 2380 -1 -1
2008-01-11 00:58:00 28122839.5 4 us 2380 -1 -1
2008-01-11.036111 -2552729 5 Hz 2380 251 251
2008-01-11.040278 2812283950 4000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)